where can I find the startup shortcuts on the new Silicon M1 Mac

"If you're using a Mac with Apple silicon, the startup options window appears when you turn on your Mac, then

continue to press and hold its power button for at least 10 seconds.

Here's what you can do in startup options:

• Select a startup disk, such as Macintosh HD. Then click Continue to start up from that disk.
• 
  
• Select Options, then click Continue to open macOS Recovery. From there you can reinstall macOS, use Disk Utility to repair your disk or erase your disk, and more.
• Click Shut Down or Restart.

These hidden features are also available in startup options:

• Select a startup disk, such as Macintosh HD, then press and hold the Shift key while clicking “Continue in Safe Mode.” Learn about safe mode.
• Press Command (⌘)-D to open Apple Diagnostics."

Welcome. There is no way on an M1 Mac.

Welcome to the Apple Support Communities.

Please see: If your Mac starts up to Options with a gear icon - Apple Support.

Jack

You're welcome.

I should mention, when you shutdown an M1 Mac, wait a few seconds, then boot, the M1 chip will check NVRAM to make sure everything is normal.

Welcome.